Electronic musical keyboard



FIG. 1 is a top plan view of an electronic musical keyboard illustrating my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side plan view thereof; and,

FIG. 4 is a cross-sectional view thereof along line 4-4 in FIG. 1. 

CLAIM The ornamental design for an electronic musical keyboard, as shown and described. 